Pharmacoat 606 (Hydroxypropyl methylcellulose, HPMC)

Polymers and photoresists

1 dataset, together covering 1.1–1.65 µm. Default: Juntunen et al. 2024: n 1.10–1.65 µm.

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Datasets

Juntunen et al. 2024: n 1.10–1.65 µm n 1.1–1.65 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Pharmacoat 606 (Hydroxypropyl methylcellulose, HPMC): Juntunen et al. 2024: n 1.10–1.65 µm
pharmacoat606 = ls.fetch_refractiveindex("other", "Pharmacoat606", "Juntunen", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(pharmacoat606.range_nm)  # (1100, 1650) nm
eps = pharmacoat606.eps([1350])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_8c5948f2aac5/lightsmith"
pharmacoat606 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(pharmacoat606.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (pharmacoat606/juntunen-2024).

# ... load pharmacoat606 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=pharmacoat606)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=1100, stop_nm=1650, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

Materials guide Open a sphere of it in Studio Quick start Ask the community

Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.

About Pharmacoat 606 (Hydroxypropyl methylcellulose, HPMC)

Other names: Hydroxypropyl methylcellulose, HPMC

API: /v1/materials/mat_1df787301df1 · slug pharmacoat606